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Definition of Sulfonic acid
1. Noun. An acid derived from sulphuric acid.
Definition of Sulfonic acid
1. Noun. (chemistry) a strong inorganic acid, HSO2OH ¹
2. Noun. (chemistry) the univalent functional group -SO2OH ¹
3. Noun. (chemistry) any member of the the class or organic acids containing this group; used in detergents, dyes and ion exchange resins ¹
¹ Source: wiktionary.com